File:Clinical diagnosis - the bacteriological, chemical, and microscopical evidence of disease (1899) (14596820517).jpg

Identifier: clinicaldiagnosi00jaks (find matches)
Title: Clinical diagnosis : the bacteriological, chemical, and microscopical evidence of disease
Year: 1899 (1890s)
Authors: Jaksch, Rudolf v., 1855-1947
Subjects: Diagnosis Clinical medicine Diagnosis Clinical Medicine
Publisher: London : C. Griffin Philadelphia : Lippincott
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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his flukeresembles the last in shape and appearance. The chief difference is inthe testicles, which in Distoma felineum consists of 4 to 5 smooth lobes,which are not further divided (fig. 87). The eggs are 0.026 to 0.03 mm.long, and o.on to 0.015 mm- broad, lidded at the pointed end; moreoblong than those of D. sinense, and somewhat flattened on one side.The usual host of this parasite is the cat or the dog, but it has latelybeen observed in the human inhabitants of Tomsk by Winogradoff. ANNELIDA 2 2 5 CLASS II.—ANNELIDA. 1. Order Nematoda (Round Worms). a. Family Ascaridce.li5 1. Ascaris lumbricoides (common round worm).—This is a cylin-drical worm, of some size, with a body that tapers from before backwards.The male is 250 mm. and the female 400 mm. long. The head, whichis distinct from the body, consists of three conical prominences (lips)furnished with tactile papillae and minute teeth. The caudal process ofthe male is folded hook-like on the abdominal surface, and is provided
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Fig. 88.—Ascaris lumbricoides.a. Head ; 6. Hinder sexual end of male ; c. Egg ; d. Male.b. Slightly magnified ; c. (eye-piece I., objective 8A, Reichert); d. half natural with papillae. In the female the vulva lies deeply behind the anteriorthird of the body (fig. 88). The eggs are nearly round, and brownishyellow in colour. Their diameter is 0.06 to 0.07 mm. In the freshstate they are covered externally with an albuminous layer, and beneaththis is a tough shell, which in turn encloses the very granular contents.The Ascaris lumbricoides infests the small intestine in man, and itappears to be common to all climates. It occurs also in cattle and insheep. It has no special medical interest; but it is thought by Lutz146 226 THE FiECES to cause spasm and tympanitis, and to impede nutrition in children.Kartulis147 records a case of death in a man following directly upon aninvasion of the liver by ascarides. Severe nervous symptoms also, asamaurosis, strabismus, and evidence of meningitis,

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